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单选题
Cable Modem技术使用()。
A
电话电缆传输数据
B
同轴电缆传输数据
C
UTP电缆传输数据
D
光纤传输数据
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下列选项中,关于Cable Modem的类型叙述不正确的是( )。A.从传输方式分,Cable Modem可分为双向对称式传输和非对称式传输B.从同步方式分,Cable Modem可分为同步交换和异步交换C.从接入角度分,Cable Modem可分为单向和双向D.从接口角度分,Cable Modem可分为外置式、内置式和交互式机顶盒
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问答题Cable Modem系统结构说明。
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